Combined water and gas connection and gas-regulator



(No Model.) 2 Sheets-Sheet 1.

R. P. BARNSTEAD. COMBINED WATER AND GAS CONNECTION AND GAS REGULATOR.No. 462,292.

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(No Model.)

B. P. BARNSTEAD. COMBINED WATER AND GAS CONNECTION AND GAS REGULATOR.No. 462,292.

Patented Nov. 3, 1891.

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ROBERT P. BARNSTEAD, OF BOSTON, MASSACHUSETTS.

COMBINED WATER AND GAS CONNECTION AND GAS-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 462,292, dated November3, 1891.

Application filed December 23, 1890. Serial No. 375,626. (No model.) i

To all 1071 0172 it may concern:

Be it known that I, ROBERT P. BARNS'IEAD, a citizen of the United Statesof America, and a resident of the city of Boston, county of Suffolk, andState of Massachusetts, have i11- vented a certain new and usefulImproved Combined \Vater and Gas Connection and Gas-Regulator to be Usedfor Hot -\Vater Apparatus, &c., of which the following is a full, clear,and exact description.

The improved combined water and gas connection and gas-regulator of thisinvention is particularly designed for hot-water apparatus, and insubstance it is composed of a vertical casin g or shell in upper andlower sections adapted to be connected together and its upper section atits upper end closed and its lower section at its lower and open endadapted to be connected to a boiler for water, &o.; a vertical closedreservoir for niercuryor such like held in and surrounded by an openspace of the shell that at its upper and lower ends, respectively, isclosed and open, preferably surrounded by a fixed tube of largerdiameter that is closed at both ends, and a fixed and inner tube held onand projected downward from the upper end of the mercurial reservoir andits upper and lower ends both open, and respectively one to the insideand the other to the outside of the reservoir, in combination with ahorizontal passage across the upper end of the mercuryreservoir and atits opposite ends, respectively, adapted to be connected to a gas-supplyand to a gas-burn er and partitioned off into two horizontal sections,always in gas communication by a j et-hole of the partition,

and its gas-supply and gas-burner connected sections respectively incommunication with open upper end of said-inner tube and with the spacebetween it and said mercury-reservoir; two side openings of the shell,one located toward upper end portion of and the other toward andpreferably below said mercury-reservoir and respectively adapted forconnection with a water-supply under pressure and with a return-pipe ofwater-pipes arranged outside of the shell for automatic circulationthrough them of water suppliedto them from the boiler of theapparatus,and two pipes respectively continuous with the lower end and with saidlower side opening of shell and both leading into the boiler, the one toa level near the lower portion and the other to a level halt-way or soof the height of the boiler; and, again, this invention in hot-waterapparatus consists in the combination,with a closed vertical reservoirto con tain, preferably, mercury or other material quickly sensitive tochanges in temperature, and which is placed as to the boiler of theapparatus for its contents to be acted on by the temperature of thewater in said boiler, and with a supply for gas, &c., to be used to heatthe water or other liquid in the boilerand suitably adapted for the gaspreferably to be only partially shut off by a rise and to be fullyopened by a fall of said mercury, of a spiral way or passage about andalong said mercury-reservoir and at its upper and lower end portionsrespectively in communication with a water-supply under pressure andwithin the boiler, and, furthermore, in an improvement in detail, ashereinafter fully appears.

In the drawings forming part of this specification, Figure l is acentral vertical section of the combined connection and gas-regulatorsof this invention in all its parts, except that its pipes leading intothe boiler are broken cit intermediate of their length and the boiler isshown as broken off. Fig. 2 is a horizontal section in detail, line 2 2,Fig. 1. Fig. 3 is a vertical section in detail, as will hereinafterappear. Fig. iis a vertical section of a hot-water boiler and also ofsome of the contrivances of this invention applied to the boiler, theremainder of the parts be ing shown in side elevations.

In the drawings, A A is a vertical shell or casing in upper and lowersections, suitably adapted to be connected togethertor illustration,Fig. 1 by simply resting the upper upon the lower and Fig. 3 by screwingone upon the other. The lower end A of the lower section A is open andis adapted to be screwed into a screw-threaded opening at the top of awater-boiler B.

O is a reservoir for mercury or other material quickly sensitive tochanges in temperature. This reservoir 0 at its upper end portion isscrewed into a screw-threaded socket at the lower end of the uppershell-section A, and extends therefrom down into and through IOO agreater portion of the height of the lower section A wherein from end toend it is surrounded by a space A which is closed atits upper end and atits lower end is continued by the full chamber A of the shell locatedbelow the lower end of the reservoir.

D is a vertical tube which surrounds the mercury-reservoir and islocated in the space A between it and the shell A This tube-D atits'upper open end is fixed in the upper end of the lower shell-sectionA and at its lower end it is closed and also below the bottom ofmercury-reservoir C.

D is an open space between reservoir 0 and vertical tube D, surroundingit, as stated.

E is a vertical tube open at both ends. This tube is of smaller diameterthan and is located in the upper portion of the reservoir, and its upperend is held on the lower end of the upper shell-section A, and its lowerend is intermediate and preferably midway or thereabout of the height ofthe reservoir.

F is a horizontal gas-passage across upper portion of upper section A ofshell and adapted at each end for gas-pipes F F, Fig. 4, to be connectedthereto, and at one end portion F by pipe F to a gas-supply, (notshown,) and at t-heother end portion F by pipe F to a burner F suitablyarranged for heating water in the boiler. The upper end of the innervertical tube E of the reservoir opens into the end portion F of thegas-passage F, connected with a gas-supply, and at the side of this tubetoward the other end portion F of the gas-passage F there is a crossvertical partition F dividing the gas-passage into two distincthorizontal sections F F one F the section connected to gas-supply andthe other F the section connected to gasburner, and this section F is inconnection 'with the mercury-chamber 0 about its inner vertical tube Eby an opening G in the lower end of the upper section A of shell andwith the gas-supply section F by a port or aperture a. To fully open orto fully close or otherwise to regulate the superficial "area of thisaperture, Fig. 2, a regulating-screw H is provided. This screw H screwsinto and through the wall of the gas-burner section F of thegas-passage, and it has conical tip H adapted for the jet-hole a, so asto fully open or close it or otherwise regulate it, all as is obviouswithout further explanation.

J is an opening at one side of the lower section A of shell and nearupper portion of and in communication with the space D directly abouttube D, surrounding the mercury-reservoir. This opening J is for theconnection of a supply-pipe (not shown) for water under pressure withthe space D of shell,

said space being in fact a part of the whole space between shell andmercury-reservoir. This space D below opening J has adown ward-windin gspiral way K, continuing to the lower end of the outer vertical tube D,Where it opens to the full chamber A of the shell, all so that the waterentering into the space D of the shell is forced to wind its way aroundthe tube D in its passage downward through the shell A.

L is a side opening of the shell A at or near lower end portion ofspiral way K, and it is for connection of the return-pipe M, making oneof the two pipes M N, the other being entered into the top of theboiler, that are, as well known, together arranged for an automaticcirculation of water through them from the boiler to the valve andnozzle at which the water is to be drawn oif.

O is a vertical pipe connected with inner end of lower side opening L oflower section A of shell A.

P is a pipe connected with the lower open end of said'shell' section.The pipe 0 is within the pipe P, and the pipe P terminates near thebottom 13 0f the boiler B and the pipe 0 terminates intermediate andpreferably midway of the height of the boiler.

As particularly shown, the lower section A of shell is of itself dividedinto upper and lower sections screwed together and having the line ofdivision just below the upper side openingJ of the shell. This divisionis desirable, as it enables the upper portion of said section A to beremoved at pleasu're,provided, of course, first thatthe water-supplyhas-been shut oil": from the side openingJand otherwise the apparatushas had its gas connection properly prepared therefor. Vith this'portionof lower shell-section A detached the tube D and also themercury-reservoir are removed, and thus the chamber of the lower portionof same section is open for inspection, cleaning, dtc.

In the connection, which as a whole has been now described plainly, themercury of the reservoir is subject to the temperature of the water inthe boiler, and thereby made either by its full rise to shut-oft and byits fall to open fully or partially, as the case may be, the main supplyof gas to the burner, the gas in the first instance then passing to theburner only through the port a and in the second instance through saidport and the inner tube of the reservoir, and thence from the reservoirthrough the opening G into the gas-burner section of gas-passage, allaccording as required, and in any event and at all times the gas-burneris supplied with gas. Again, plain-1y when theouter tube D is used themercury-reservoir can be detached by simply detachingthe upper section Afrom the lower section A of shell, first, of course, having disconnectedthe gas-pipes at the gaspassage F and stopped up its opposite endopening, which obviously is advantageous-a very important feature, inthat it enables the IIO mercury-reser'v oir to be detached withoutdisturbance of the Water connections. Again,

plainly the said connection is compact and carries practically in onewhole all parts for the gas connections and the passages of the gas, asstated; also all parts for water connections, except that for one pipe Nof the automatic circulating-pipes M N and the mercuryreservoir, theparts being all practically within and embraced by one outer shell orcasing A, and when that is attached placing all in position.

The outer tube D surrounding the mercuryreservoir constitutes anessential feature of this invention; but in so far as relates to theresult produced by the down ward spiral run of the water from the supplyto the boiler it can be as well produced by removing said tube andhaving the water-supply run in direct contact with themercury-reservoir. (See Fig.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In an apparatus for heating water, which embraces a waterboiler andva gas-burner to heat said boiler, a combination fixture consisting of avertical shell closed at its upper and open at its lower end and thereadapted to be connected to the boiler, a vertical mercurial reservoirheld on and vertically having a space between it and said shell closedat its upper end, two openings at the side of said shell, one within theheight of and the other below said reservoir and both adapted forseparate exterior water connection, and a gaspassage which at itsopposite endsis adapted to be connected to-a gas-supply and said burnerand lies across the upper end of said shell and reservoir and is dividedintermediately into opposite end portions having separated gascommunications between them, one direct and the other indirect and byway of and through said reservoir, substantially as described, for thepurposes specified.

2. In an apparatus for heating water, which embraces a water-boiler anda gas-burner to heat said boiler, a combination fixture consisting of avertical shell closed at its upper and open at its lower end and thereadapted to be connected to the boiler, a vertical mercurial reservoirheld on and vertically having a space between it and said shell closedat its upper end and at its lower portion having a downward spiral way,two openings at the side of said shell, one within the height of and theother below said reservoir and bothadaptedforseparateexteriorwaterconnection, and a gas-passage which atits opposite ends is adapted to be connected to agas-supply and saidburner and lies across the upper end of said shell and reservoir and isdivided intermediately into opposite end portions having separated gascommunications between them, one direct and the other indirect and byway of and through said reservoir, substantially as described, for thepurposes specified.

3. In an apparatus for heating-water, which embraces a waterboiler and agas-burner to heat said boiler, a combination fixture consisting of anouter vertical shell divided into upper and lower parts continuous withbut separable from each other and having the lower part closed at itsupper and open at its lower endand there adapted to be connected to theboiler, a vertical shell within and having its upper and open end held011 the upper portion of said lower part of the outer shell and itslower end closed and vertically having a space between it and said outershell closed at its upper and open at itslowcr end,- a verticalmercurial reservoir held on the upper part of said outer shell andextending therefrom into said inner shell,two openings at the side ofsaid outer shell, one within the height of and the other below saidinner shell and both adapted for separate exterior water connection, anda gas-passage which at its opposite ends is adapted to be connected toagassupplyand said burnerand is held on the upper part of and liesacross said outer shell and is divided intermediatelyinto opposite endportions having separated gas communications between them, one directand the other indirect and by way of and through said reservoir,substantially as described, for the purposes specified.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ROBERT I. iARNSTEAD.

Witnesses:

ALBERT W. BROWN, MARION E. Known.

